package com.yinhai.domain;

import com.alibaba.fastjson.annotation.JSONField;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;

/**
 * @author : chengxd
 * @create 2024/2/7 11:37
 */
@Data
@NoArgsConstructor
public class LoginUser implements UserDetails, Serializable {

    private static final long serialVersionUID = 1461801478121788269L;

    private User user;

    private List<String> auth;


    @JSONField(serialize = false)
    private List<GrantedAuthority> authorities;

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        // 优化为只需要第一次获取的时候进行遍历，后面再用就会从authorities这个成员变量中获取了，不会再进行Stream循环遍历了
        if(authorities!=null){
            return authorities;
        }
        //把permissions中字符串类型的权限信息转换成GrantedAuthority对象存入authorities中
        authorities = auth.stream().
                map(SimpleGrantedAuthority::new)
                .collect(Collectors.toList());
        return authorities;
    }

    @Override
    public String getPassword() {
        return user.getPassword();
    }

    @Override
    public String getUsername() {
        return user.getUserName();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }


    public LoginUser(User user, List<String> auth) {
        this.user = user;
        this.auth = auth;
    }
}
